Originally Posted by
gwpercle
What film ? After fluxing , I do a three step flux , there is no film ..any crud that comes to the surface you skim it off and discard it . Are you skimming after each flux .
What temperature is your metal when this film forms and what does it look like .
Post some photo's maybe ?
My fluxing method:
1. Marvelux, stir in well with a wooden paddle.
2. Cedar shavings from wood pencil sharpener, large pinch , stir with wood paddle
3. Beeswax , size of a green pea , toss on top of shavings , stir - skim, stir- skim , stir - skim until no more crud comes up to the surface .
With a 20 lb. pot of metal I might repeat this to make sure my melt is as clean as possible .
I have found using only one type of flux doesn't do a totally complete job..
Marvelux + cedar wood shavings + beeswax = complete flux job and clean melt .
Gary